Here are the mental addition strategies we have discussed in Unit 2.


These are the mental subtraction strategies we reviewed in Unit 2.


These are the estimation strategies from Unit 2 for adding and subtracting.





Here are some of the multiplication strategies we explored during Unit 3.



Here is the long division strategies we have learned in Unit 3.
This is how we have learned to do long division. The example is dividing a 2 digit number by 1 digit number (48 ÷ 2). The strategy works with 3 digit by 1-digit numbers (i.e. 252 ÷6)
It is in both Word and PDF formats.



This document shows how to divide more efficiently. It shows two solutions for 252 ÷ 6, one that is longer (effective) than the other (efficient).
It is in both Word and PDF formats.



This document shows how to solve problems that have remainders . It shows the solution to 255 ÷ 6 = 42 R3
It is in both Word and PDF formats.